Apparatus for coating articles



Sept. 5, 1939. J. H. FUNK APPARATUS FOR COATING ARTICLES Filed Jan. 6, 1956 ...JmL/@E755 mlm 51E/mfr' j? L' 3L- LA7 Eff 5- APatented Sept. 5, 1939 PATENT OFFICE APPARATUS FOR COATING ARTICLES John H. Flink, Watertown, Mass., assignor to Hood Rubber Company, Inc., Watertown, Mass., a corporation of Delaware Application January 6, 1936, Serial No. 57,727

Claims.

This invention relates to apparatus for applying a coating to articles such as gloves or mittens made of textile material.

It is often desirable to provide gloves or mittens 5 of textile material with pon-porous flexible facings of wear resisting material. As the application of the coating is preferably applied only to the working faces of the article so as to permit ventilation through other parts thereof, it bem comes desirable to provide a method and apparatus whereby such incomplete coatings may be applied at low cost. Heretofore such coatings com-- Fig. 1 is a side view of the preferred form of apparatus used, the form clamping tongs being shown in open position with the textile gloves in place before the coating is applied, parts being broken away' and parts shown in section to facilitate illustration.

Fig. 2 is a view of the same side of the same apparatas with the forms clamped together and the apparatus immersed in a dipping tank, the tank andA part of the clamping collar being shown in section.

Fig. 3 is. a\crosssectional view takenon line 3 3 of Fig. 2.

Fig. 4 is a rear view of a iinished glove.

Referring to the drawing, the invention comprises assembling the glove or mitten on a dipping form, clamping the form against a maskingstruc ture and applying a coating over such portions of o the textile material as are exposed. The forms are preferably used to mask each other and coated in pairs.

The preferred form of apparatus comprises a pair of forms I0, I I, each formed with a flat side I2, 'I3 of equal extent and corresponding in shape and area to the area of the article which is to remain uncoated. In the example shown the at area is along theback of the glove. A pair of o gloves I4, I5 of woven cloth or other textile material are placed over the forms and their wrist portions are cuffed over the bases of the forms and tucked into the` hollow interiors thereof as 'u In order to clamp the ilat faces of the 'forms together to prevent coating of the textile material over such flattened areas, and to support the forms, the forms are pivotally mounted as at I8,

I9 to the ends of a pair of tongs 20,' 2|, to hold them in clamping relation as shown in Fig. 2 5 and when raised, as in Fig. 1, to permit the tongs being swung open on the pivot 22. A collar 23, formed with an aperture adapted to slide over the tongs 20, 2| Aand to hold them in clamped relation, may be raised to the position shown in Fig. 10 1 to release the tongs or to the position shown in Fig. 2 to clamp the tongs. The collar 23 is preferably formed on its outer face to the contour of the combined forms and when in clamping position its lower face contacts with the turned in portions of the articles and clamps them against the forms so as to define the extent of the coating to be applied.

The coating may be applied in any desired manner as by dipping, spraying, etc., but it is preferred to deposit a coating by dipping the prepared forms in a dispersion or solution of the coating composition. Where rubber coatings are to be applied a solution of rubber in a volatile solvent, or a dispersion of rubber, either natural or artificial, in water, and containing vulcanizing agents, accelerators, age resisters, coloring and reinforcing pigments as desired, is prepared and the articles supported by the forms are dipped therein one or more times to provide the desired thickness of coating. Where natural or artificial dispersions of rubber are employed the articles may iirst be dipped in a coagulant of rubber such as calcium nitrate or acetic acid in a suitable solvent such as water, alcohol or acetone, or. by 85 the well known process of electro deposition the forms mayhbe electrically charged as an anode and introduced into a dispersion with a cathode in the same circuit, in which case the coagulant may be dispensed with.

After the dipping or other coating operations have been performed and either before or after vulcanization of the coatings, which may be accomplished in any well known manner as by heating in dry air or steam or by contact with gases or solutions of sulfur chloride or accelerators or the like, the forms with the textile articlesthereon are separated and after Vulcanization of the coatings the articles are removed from the forms.

' I claim:

1. Apparatus for forming coatings over a portion of the surface of flexible contoured articles, said apparatus comprising a form adapted to t within the article and havingla attened areal corresponding to the area of the article to remain 5l uncoated, and masking means adapted t0 coop.

ncratev with the attened portion Aof the form to mask the portion of the article overlying the attened portion.

2. Apparatus for forming coatings over a portion of the surface of textile articles. said apparatus comprising a pair of forms adapted to Iltv within a pair of articles and each having a corresponding attened face, and means for clamp-` 4. Apparatus for forming coatings over a portion of the surface of textile articles, said apparatus comprising tongs for supporting a plurality of forms, a form supported by each leg of the tongs, each form being adapted to fit within an article and having a portion of its face adapted to clamp the articles between adjoining forms to mask a portion of their surfaces, and.4 means adapted torclam'p the articles around the mouth ol.' the forms' and simultaneously to clamp the articles between the forms.

5. Apparatus for coating a portion only of the surface area "of flexible contoured articles, said apparatus comprising means including a plurality of elements for supporting a plurality of articles from within the articles, and means for holding the supported articles together so 'that a portion of the area of each article is masked from coat ing material.

JOHN H. FLINK. 2o 

